Redesign PHP-Nuke website to Wordpress Website

I need our website rewritten in Wordpress. Right now it is PHP-Nuke, and I want it to look identical if possible (or as close as possible) to how it looks now but in Wordpress. The entire website needs to be redone. The only part that doesnt need to be redone are the ecommerce stores that link to external sites anyway. The site is [login to view URL] All pages and links, etc must look the same as they do now, but in a Wordpress back end.